JPH067817B2 - Endoscope with built-in solid-state image sensor - Google Patents
Endoscope with built-in solid-state image sensorInfo
- Publication number
- JPH067817B2 JPH067817B2 JP4044686A JP4044686A JPH067817B2 JP H067817 B2 JPH067817 B2 JP H067817B2 JP 4044686 A JP4044686 A JP 4044686A JP 4044686 A JP4044686 A JP 4044686A JP H067817 B2 JPH067817 B2 JP H067817B2
- Authority
- JP
- Japan
- Prior art keywords
- solid
- endoscope
- state image
- flexible printed
- circuit board
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000003384 imaging method Methods 0.000 claims description 5
- 238000005452 bending Methods 0.000 description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 239000013307 optical fiber Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/03—Use of materials for the substrate
- H05K1/0393—Flexible materials
Landscapes
- Electric Cable Arrangement Between Relatively Moving Parts (AREA)
- Instruments For Viewing The Inside Of Hollow Bodies (AREA)
- Storing, Repeated Paying-Out, And Re-Storing Of Elongated Articles (AREA)
- Endoscopes (AREA)
- Insertion, Bundling And Securing Of Wires For Electric Apparatuses (AREA)
- Solid State Image Pick-Up Elements (AREA)
- Transforming Light Signals Into Electric Signals (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、工業用および医学用に用いることができる固
体撮像素子を有する内視鏡に関する。The present invention relates to an endoscope having a solid-state image sensor that can be used for industrial and medical purposes.
〔従来の技術〕 近時、内部先端に固体撮像素子を内蔵してモニタで観察
することができる内視鏡が用いられ始めている。第６図
はそのような内視鏡のブロック図を示し、１は内視鏡本
体、２は可撓管部、３は先端硬性部であり、内部先端に
対物レンズ４と固体撮像素子５が内蔵されている。６は
柄部である。[Prior Art] Recently, an endoscope which has a solid-state imaging device built in its inner tip and can be observed on a monitor has begun to be used. FIG. 6 shows a block diagram of such an endoscope, in which 1 is an endoscope main body, 2 is a flexible tube portion, 3 is a tip rigid portion, and an objective lens 4 and a solid-state image sensor 5 are provided at an inner tip. It is built in. 6 is a handle.
さらに内視鏡本体１内には図示しないが送光用光学繊維
束，必要に応じて鉗子導入管，給水管さらに送気管等が
内蔵される。Further, in the endoscope body 1, although not shown, an optical fiber bundle for light transmission, a forceps introduction tube, a water supply tube, an air supply tube, etc. are built in if necessary.
７は内視鏡本体１内に通した電線であり、固体撮像素子
５と映像回路８を接続している。９は映像回路８と接続
するモニタである。Reference numeral 7 denotes an electric wire that passes through the endoscope body 1 and connects the solid-state imaging device 5 and the video circuit 8. A monitor 9 is connected to the video circuit 8.
このような構成によると、観察する機器内や体腔内に挿
入された内視鏡本体１によって電気信号化された画像は
映像回路８を介してモニタ９に写し出されて多数の人達
が供覧できると共にビデオテープや光学ディスク等に画
像を保存しておくことができるようになっている。With such a configuration, the image converted into an electric signal by the endoscope body 1 inserted in the equipment to be observed or in the body cavity is displayed on the monitor 9 via the video circuit 8 and can be viewed by many people. Images can now be stored on video tapes, optical discs, etc.
以上のような技術による内視鏡は、上記のような作用を
して多くの利点を有するために今後は広く利用されると
思われるが、上記構成において、内視鏡先端の固体撮像
素子と映像回路を結ぶ複数の電線は端部がそれぞれ固体
撮像素子にハンダ付け等の手段により接続され、内視鏡
本体の長い可撓管内を通り、しかも柄部から引出されて
も直ちに映像回路に接続されるものでは無く、ある程度
の長さを保たないと内視鏡の操作性に支障をきたすため
に全長としては非常に長い電線となってしまう。The endoscope according to the technique as described above is expected to be widely used in the future because it has the above-mentioned effects and has many advantages. The ends of the wires connecting the video circuits are connected to the solid-state image sensor by means such as soldering, pass through the long flexible tube of the endoscope body, and are immediately connected to the video circuit even when pulled out from the handle. If the length is not maintained to a certain extent, the operability of the endoscope will be impaired, and the electric wire will be very long as the entire length.
ところが、固体撮像素子に接続された電線は１本１本独
立しているために、可撓管の曲折に応じてある電線は引
張られ、他の電線はたるむ等の応力を受け、また接続個
所はスペースの制約を受けるためにハンダ付の面積が充
分にとれないなどの理由によって接続強度が低く、使用
される電線類も直径が0.1〜0.2mmの極めて細い線であ
る。その結果、固体撮像素子の接続部での断線が多く、
その場合、長い可撓管中を通してあることからその修理
には大変な手間と熟練した技術が要求されることにな
る。However, since the electric wires connected to the solid-state image sensor are independent, one electric wire is pulled in response to bending of the flexible tube, and the other electric wire receives a stress such as sagging, and the connecting point The connection strength is low due to reasons such as the limited space for soldering due to space constraints, and the wires used are also very thin wires with a diameter of 0.1 to 0.2 mm. As a result, there are many disconnections in the connection part of the solid-state image sensor,
In that case, since it is passed through a long flexible tube, its repair requires a great deal of time and skill.
本発明は、フレキシブルプリント基板を長尺の帯状とし
てその長手方向に全長もしくは部分的に蛇腹状に曲折し
たもので、その端部を固体撮像素子に接続して配線した
ことを特徴とする。The present invention is characterized in that a flexible printed circuit board is formed into a long strip shape and is bent in the longitudinal direction in the entire length or in a bellows shape, and the end portion thereof is connected to a solid-state image pickup device and wired.
上記の構成によると、フレキシブルプリント基板はその
端部が固体撮像素子にほぼ面状態で連結されるために接
続強度が大きく、しかも長手方向に蛇腹状に曲折してあ
ることにより装着した内視鏡の可撓管のどの方向への曲
折に対しても追従して自在に曲がることができるために
フレキシブルプリント基板に無理な力が加わることがな
く、それによって固体撮像素子との接続部へかかる力も
吸収するため応力がかからなくなり、接続部の断線事故
が極めて少なくなる。According to the above construction, the flexible printed circuit board has a large connection strength because the end portion of the flexible printed circuit board is connected to the solid-state image pickup device in a substantially planar state, and the flexible printed circuit board is bent in the shape of a bellows in the longitudinal direction. Since the flexible tube can be flexibly bent by following the bending of the flexible tube in any direction, an unreasonable force is not applied to the flexible printed circuit board, and the force applied to the connection part with the solid-state image sensor is also reduced. Since it absorbs, no stress is applied, and the number of accidents of disconnection of the connection part is extremely reduced.
また、可撓管の曲折に自在に追従するために可撓管が曲
折するに対して抵抗が少なく可撓管の曲折操作が円滑に
行なえることになる。Further, since the flexible tube flexibly follows the bending of the flexible tube, the bending resistance of the flexible tube is small and the bending operation of the flexible tube can be smoothly performed.
以下に本発明の実施例を図面に従って説明する。 Embodiments of the present invention will be described below with reference to the drawings.
第１図は側断面図、第２図は固体撮像素子とフレキシブ
ルプリント基板を接続した状態の斜視図、第３図は接続
部の状態を示す平面図であり、図において、１は内視鏡
本体、２は可撓管部、３は先端硬性部であり、この内部
先端に対物レンズ４，固体撮像素子５等が内蔵される。
６は柄部である。FIG. 1 is a side sectional view, FIG. 2 is a perspective view showing a state where a solid-state image pickup element and a flexible printed circuit board are connected, and FIG. 3 is a plan view showing a state of a connecting portion, in which 1 is an endoscope. The main body 2, the flexible tube portion 3 and the rigid tip portion 3 have the objective lens 4, the solid-state imaging device 5 and the like built in at the inner tip thereof.
6 is a handle.
１０はフレキシブルプリント基板であり、その端部は上
記固体撮像素子５に第３図に示す如く面状態の接続部１
１となるようにして接続していて、長手方向には蛇腹状
に曲折してあり、その曲折状態は、波形の高さ，波長，
波の角度等は所望の寸法でよく、また全長にわたって一
定の波形，波長で無くてもよく、さらには、部分的に曲
折状態でなく平面状態の処があってもよい。また、この
ように曲折したフレキシブルプリント基板を長手方向に
捻っておくと一層可撓管の曲折に際して追従性はよくな
る。Reference numeral 10 denotes a flexible printed circuit board, the end portion of which is connected to the solid-state image sensor 5 in a planar state as shown in FIG.
They are connected so as to be 1, and are bent like a bellows in the longitudinal direction. The bent state is the height of the waveform, the wavelength,
The wave angle or the like may have a desired size, may not have a constant waveform or wavelength over the entire length, and may have a flat state instead of a partially bent state. Further, if the flexible printed circuit board thus bent is twisted in the longitudinal direction, the followability is further improved when the flexible tube is bent.
さらに、このようなフレキシブルプリント基板１０に映
像回路の電子部品の一部もしくは全部を搭載してもよ
い。Furthermore, some or all of the electronic components of the video circuit may be mounted on such a flexible printed board 10.
９はモニタであり、映像回路８と接続している。A monitor 9 is connected to the video circuit 8.
上記した先端硬性部３にはその他必要に応じて例えば空
気・水噴出口，吸引口および鉗子口等が開口している。
また可撓管部２には送光用光学繊維束，アングル操作ワ
イヤその他空気・水導通管，鉗子導入管および吸引管等
が必要に応じて内蔵されている。柄部６には各種操作用
ノブ，鉗子導入口さらに上記送光用光学繊維束，空気・
水導通管および吸引管等の案内管１３が延長されてい
る。In addition to the above, for example, an air / water jet port, a suction port, a forceps port, etc. are opened in the above-mentioned rigid tip end portion 3.
The flexible tube portion 2 contains optical fiber bundles for light transmission, angle operation wires, other air / water conduits, forceps introduction tubes, suction tubes, and the like as necessary. The handle 6 includes various operation knobs, forceps inlets, the optical fiber bundle for light transmission, air,
A guide tube 13 such as a water conduit tube and a suction tube is extended.
以上の構成によると、可撓管２が曲折した場合、その曲
折方向がフレキシブルプリント基板１０の蛇腹状の曲折
と同方向の場合には第４図(I)に示す如くフレキシブル
プリント基板１０はそのまま曲折し、蛇腹状の曲折と直
角方向の場合には第４図(II)に示す如く内側が縮み、外
側が伸びるようにして曲折するためにフレキシブルプリ
ント基板１０自体には応力はかからない。またフレキシ
ブルプリント基板１０と固体撮像素子５との接続部１１
にも応力はほとんどかからず接続部１１の断線事故の発
生の虞れも無くなる。According to the above configuration, when the flexible tube 2 is bent, and the bending direction is the same as the bellows-shaped bending of the flexible printed board 10, the flexible printed board 10 remains as it is as shown in FIG. 4 (I). In the case of bending and bending in a direction perpendicular to the bellows-like bending, the flexible printed circuit board 10 itself is not stressed because it bends so that the inner side contracts and the outer side extends as shown in FIG. 4 (II). In addition, a connecting portion 11 between the flexible printed circuit board 10 and the solid-state image sensor 5
In addition, almost no stress is applied, and there is no fear that a disconnection accident of the connecting portion 11 will occur.
第５図は、第２実施例を示し、フレキシブルプリント基
板１０に電線１２を接続した構造としてもよく、所定長
さのフレキシブルプリント基板１０に電線１２を接続し
たもので、可撓管２内に挿入して可撓管２の曲折作用を
あまり受けない後方に電線１２を接続してもフレキシブ
ルプリント基板１０と電線１２との接続個所において、
曲折時の電線のひきつれやおされ等もフレキシブルプリ
ント基板１０の蛇腹部が吸収するため、断線等の故障を
防止することができる。FIG. 5 shows a second embodiment, which may have a structure in which the electric wire 12 is connected to the flexible printed circuit board 10, and the electric wire 12 is connected to the flexible printed circuit board 10 of a predetermined length. Even if the electric wire 12 is connected to the rear side where the flexible tube 2 is inserted and is not subjected to the bending action of the flexible tube 2, at the connection point between the flexible printed circuit board 10 and the electric wire 12,
Since the bellows portion of the flexible printed circuit board 10 absorbs even when the electric wire is twisted or bent when bent, it is possible to prevent a failure such as disconnection.
なお、上記各実施例においてフレキシブルプリント基板
に電気的シールド等の必要があれば配線層の片面または
両面にシールド層を絶縁層を挾んで積層しておけばよ
い。In addition, in each of the above-mentioned embodiments, if it is necessary to provide an electric shield or the like on the flexible printed circuit board, a shield layer may be laminated on one side or both sides of the wiring layer with an insulating layer interposed therebetween.
以上詳細に説明した本発明によると、内視鏡内に設置し
た固体撮像素子と映像回路を連結する配線をフレキシブ
ルプリント基板とし、しかもそのフレキシブルプリント
基板を蛇腹状に曲折して可撓管内に内蔵することによ
り、長い可撓管を曲折操作した場合に可撓管内でフレキ
シブルプリント基板は抵抗無く曲折に対して曲りの内側
は縮み外側は伸びるために具合良く追従することがで
き、その結果、可撓管の曲折操作が円滑となり、しか
も、固体撮像素子とフレキシブルプリント基板との接続
部や他端側の接続個所に無理な応力がかからないための
断線事故を防ぐことができ困難な修理作業が少なくなる
ことになる。According to the present invention described in detail above, a wiring for connecting a solid-state image pickup device installed in an endoscope and a video circuit is a flexible printed circuit board, and the flexible printed circuit board is bent in a bellows shape and built in a flexible tube. By doing so, when a long flexible tube is bent, the flexible printed circuit board can flexibly follow the bending inside the flexible tube because the inside of the bend contracts and the outside extends, so that the flexible printed circuit board can flexibly follow the bending. The bending operation of the flexible tube is smooth, and moreover, it is possible to prevent disconnection accidents because unreasonable stress is not applied to the connection part between the solid-state image sensor and the flexible printed circuit board or the connection part on the other end side, and difficult repair work is reduced. Will be.
さらに、フレキシブルプリント基板に映像回路の１部も
しくは全部の電子部品を搭載することも可能であり、そ
の場合には長い電線接続により生じるＳＮ比の悪化を防
いで良質な画像をモニタに得ることができる。Furthermore, it is possible to mount a part or all of electronic components of the video circuit on the flexible printed circuit board, and in that case, it is possible to prevent deterioration of the SN ratio caused by long wire connection and obtain a high quality image on the monitor. it can.
第１図は本発明の一実施例を示す側断面図、第２図は固
体撮像素子とフレキシブルプリント基板を接続した状態
の斜視図、第３図は接続部の状態を示す平面図、第４図
はフレキシブルプリント基板が曲折した状態の斜視図、
第５図は第２実施例の斜視図、第６図は従来例の内視鏡
のブロック図である。 ２……可撓管部、３……先端硬性部、５……固体撮像素
子、６……柄部、８……映像回路、９……モニタ、１０
……フレキシブルプリント基板、１２……電線FIG. 1 is a side sectional view showing an embodiment of the present invention, FIG. 2 is a perspective view showing a state where a solid-state imaging device and a flexible printed circuit board are connected, and FIG. 3 is a plan view showing a state of a connecting portion. The figure is a perspective view of the flexible printed circuit board bent,
FIG. 5 is a perspective view of the second embodiment, and FIG. 6 is a block diagram of a conventional endoscope. 2 ... Flexible tube part, 3 ... Tip rigid part, 5 ... Solid-state image sensor, 6 ... Handle part, 8 ... Image circuit, 9 ... Monitor, 10
...... Flexible printed circuit board, 12 ...... electric wire
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｈ０５Ｋ 7/00 Ｂ 7819−4Ｅ 7/02 7301−4Ｅ ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 5 Identification code Office reference number FI technical display location H05K 7/00 B 7819-4E 7/02 7301-4E
Claims (2)
し、この固体撮像素子によって得られた電子画像をモニ
タに映し出すようにした内視鏡において、フレキシブル
プリント基板を長尺の帯状とし、その長手方向を全長も
しくは部分的に蛇腹状に曲折して可撓管内に納めて配線
したことを特徴とする固体撮像素子を内蔵した内視鏡。1. An endoscope in which a solid-state image pickup device is built in a rigid portion of the tip of the endoscope and an electronic image obtained by the solid-state image pickup device is displayed on a monitor. An endoscope having a built-in solid-state imaging device, characterized in that its longitudinal direction is bent into a bellows shape in its entire length or in part and is housed in a flexible tube for wiring.
ブルプリント基板に電線を接続したことを特徴とする固
体撮像素子を内蔵した内視鏡。2. An endoscope incorporating a solid-state image pickup device according to claim 1, wherein an electric wire is connected to the flexible printed board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4044686A JPH067817B2 (en) | 1986-02-27 | 1986-02-27 | Endoscope with built-in solid-state image sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4044686A JPH067817B2 (en) | 1986-02-27 | 1986-02-27 | Endoscope with built-in solid-state image sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62199057A JPS62199057A (en) | 1987-09-02 |
| JPH067817B2 true JPH067817B2 (en) | 1994-02-02 |
Family
ID=12580871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4044686A Expired - Lifetime JPH067817B2 (en) | 1986-02-27 | 1986-02-27 | Endoscope with built-in solid-state image sensor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH067817B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017081718A1 (en) * | 2015-11-09 | 2017-05-18 | オリンパス株式会社 | Endoscope |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101773698A (en) * | 2004-04-19 | 2010-07-14 | Et视觉有限公司 | Imaging catheter |
| KR100541958B1 (en) * | 2004-04-21 | 2006-01-10 | 삼성전자주식회사 | Flexible Printed Circuit Board |
| JP4515211B2 (en) * | 2004-10-01 | 2010-07-28 | 富士通株式会社 | Electronics |
| JP5159051B2 (en) * | 2006-05-17 | 2013-03-06 | Ｈｏｙａ株式会社 | Endoscope device |
| EP2052294A4 (en) | 2006-08-03 | 2012-08-22 | 3M Innovative Properties Co | FLEXIBLE CIRCUITS OF LARGE LENGTH AND METHOD FOR PRODUCING THE SAME |
| KR100960262B1 (en) | 2008-08-14 | 2010-06-07 | 한전케이피에스 주식회사 | Shape-Flexible Thin-Film Type Endoscope Using Imaging Device |
| KR101101658B1 (en) * | 2009-11-16 | 2011-12-30 | 삼성전기주식회사 | Endoscopic camera module package and manufacturing method thereof |
| KR101077562B1 (en) * | 2009-11-19 | 2011-10-28 | 한전케이피에스 주식회사 | Arc-shaped flexible printed circuit film type endoscope using imaging device with driving holes |
| JP6338539B2 (en) * | 2015-02-25 | 2018-06-06 | 株式会社東海理化電機製作所 | Switch device |
-
1986
- 1986-02-27 JP JP4044686A patent/JPH067817B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017081718A1 (en) * | 2015-11-09 | 2017-05-18 | オリンパス株式会社 | Endoscope |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62199057A (en) | 1987-09-02 |
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